To many of us, anatomy is a science that was started by Leonardo da Vinci, and then it was wrapped up in the next couple hundred years. Turns out that scientists like Diane Kelly from the University of Massachusetts, Amherst have a lot left to study, and one of the latest findings is the surprising internal structure of mammalian penises and why they don’t wiggle.

Having spoken to Dr Kelly later in the evening at a TEDMED party, she recommended that we look more into the nature of duck penises and how evolution made the surprisingly unexpected looking organs that frighten those of us who have seen them.